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Better StackUptime Monitoring & Status PagesBetter Stack is a hosted platform for uptime monitoring, on-call alerting, incident management, status pages, logs, traces, metrics, error tracking and an AI SRE agent, with a free tier and usage-based telemetry pricing.CommercialWeb platformFreemium
Highlight.ioMonitoring & ObservabilityHighlight.io is an open-source monitoring platform for session replay, error monitoring, logs and traces. LaunchDarkly acquired Highlight in April 2025; the hosted service ended on February 28, 2026, while the repository stays open.Open sourceSelf-hosted
OpenObserveMonitoring & ObservabilityOpenObserve (O2) is an AGPL-3.0 observability platform written in Rust for logs, metrics, traces, RUM, dashboards, alerts, pipelines and LLM observability, self-hosted as a single binary or HA cluster, or used as a cloud service.Open sourceSelf-hostedFreemium
OpenPanelAnalytics & BIOpenPanel combines web traffic metrics with product analytics: funnels, retention, profiles, session replay, revenue and AI call tracking. It is AGPL-3.0, cookieless by default and runs in an EU cloud or on your own Docker server.Open sourceSelf-hostedFreemium
PostHogAnalytics & BIProduct analytics platform with session replay, feature flags, experiments, surveys, error tracking, logs, a data warehouse, AI observability and an MCP server. Use PostHog Cloud in the US or EU, or self-host with Docker.Open sourceSelf-hostedFreemium
ReplayowlAnalytics & BIOpen-source session replay for websites under AGPL-3.0: a small recorder, search by user, page and error, browser-side masking, and recordings in your own S3 bucket. Hosted free plan or self-hosted.Open sourceSelf-hostedFreemium
RybbitAnalytics & BIRybbit is an AGPL-3.0 web and product analytics platform with sessions, funnels, journeys, retention, session replay, error tracking and an API. It runs as EU-hosted Rybbit Cloud or self-hosted with Docker.Open sourceSelf-hostedFreemium
SentryMonitoring & ObservabilitySentry is a Fair Source debugging platform that groups errors into issues and adds traces, logs, session replays, profiles, cron and uptime monitors. It runs as the sentry.io service with US or EU storage, or self-hosted with Docker Compose.CommercialSelf-hostedFreemium
TempsPaaS & App DeploymentOne self-hosted Rust binary that deploys apps from git and bundles managed databases, web analytics, session replay, Sentry-compatible error tracking, OpenTelemetry, uptime, email and an AI gateway. Dual-licensed MIT or Apache 2.0.Open sourceSelf-hostedFreemium
UmamiAnalytics & BIUmami is an MIT-licensed web and product analytics platform: a small cookieless tracker feeds traffic, events, funnels, retention, revenue, session replay and heatmap reports. Self-host it with Node.js and PostgreSQL or use Umami Cloud.Open sourceSelf-hostedFreemium